Hybrid quantum surface acoustic wave with skyrmion qubit for quantum information processing

Abstract

Surface acoustic wave (SAW) devices are key components of classical communication systems and recently studied for quantum information processing. We here propose and study a hybrid quantum system composed of skyrmion qubit and a SAW cavity, which supports a number of long-lived phononic modes. The results show that the system allows for strong coupling between skyrmion qubit and single phonon of different modes. By manipulating the qubit(s) through a static magnetic field and a time-dependent modulation magnetic field, we further study the interaction between skyrmion qubit and individual phononic modes, phonon-phonon interaction, and qubit-qubit interaction, which operates in strong-coupling regime. The controllability of nanoscale skyrmion qubit and the dense phononic modes of single SAW cavity would make our system have promising applications in large-scale quantum communication and computing.

7 pages, 5 figures

References in corpus (15)

• Advances in the Physics of Magnetic Skyrmions and Perspective for Technology
• Spin current and magneto-electric effect in non-collinear magnets
• Coupling Superconducting Qubits via a Cavity Bus
• Microwave photonics with superconducting quantum circuits
• Coherent quantum state storage and transfer between two phase qubits via a resonant cavity
• Propagating phonons coupled to an artificial atom
• Phonon-mediated quantum state transfer and remote qubit entanglement
• Skyrmion Qubits: A New Class of Quantum Logic Elements Based on Nanoscale Magnetization
• Topological Hall effect at above room temperature in heterostructures composed of a magnetic insulator and a heavy metal
• Photon shell game in three-resonator circuit quantum electrodynamics
• Qubit-assisted transduction for a detection of surface acoustic waves near the quantum limit
• Skyrmion Qubits: Challenges For Future Quantum Computing Applications
• Magnetic Structure and Properties of the S = 5/2 Triangular Antiferromagnet $\alpha$-NaFeO${}_2$
• Colloquium: Quantum Properties and Functionalities of Magnetic Skyrmions
• Scalable Parameter Design for Superconducting Quantum Circuits with Graph Neural Networks